CN106622281B - A kind of preparation method of organic ligand modified formaldehyde cleaning catalyst - Google Patents
A kind of preparation method of organic ligand modified formaldehyde cleaning catalyst Download PDFInfo
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- CN106622281B CN106622281B CN201610868453.5A CN201610868453A CN106622281B CN 106622281 B CN106622281 B CN 106622281B CN 201610868453 A CN201610868453 A CN 201610868453A CN 106622281 B CN106622281 B CN 106622281B
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- modified
- catalyst
- water
- titanium oxide
- formaldehyde
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical class O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000003054 catalyst Substances 0.000 title claims abstract description 49
- 239000013110 organic ligand Substances 0.000 title claims abstract description 15
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000843 powder Substances 0.000 claims abstract description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 150000003839 salts Chemical class 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910001593 boehmite Inorganic materials 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229910052718 tin Inorganic materials 0.000 claims abstract description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012046 mixed solvent Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 230000000505 pernicious effect Effects 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- 230000001954 sterilising effect Effects 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 6
- 229920000609 methyl cellulose Polymers 0.000 abstract description 5
- 239000001923 methylcellulose Substances 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000003421 catalytic decomposition reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 238000004887 air purification Methods 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 235000010981 methylcellulose Nutrition 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 210000003850 cellular structure Anatomy 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000014085 Chronic respiratory disease Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000622 irritating effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- UYXRCZUOJAYSQR-UHFFFAOYSA-N nitric acid;platinum Chemical compound [Pt].O[N+]([O-])=O UYXRCZUOJAYSQR-UHFFFAOYSA-N 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- -1 second Chemical compound 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a kind of preparation methods of organic ligand modified formaldehyde cleaning catalyst, the La and Cu for being titania weight 1-10% by total content, Fe, at least one of tri- kinds of Ni and Sn, at least one of two kinds of Mn carry out mixing premix, it adds water and is mixed and made into water soluble salt, add titanium oxide powder, modified catalyst supports are made through dry high-temperature roasting, it is then added in Pt metal organic solution, modified catalyst supports powder is made through dry high-temperature roasting, add boehmite and methylcellulose, modified slurry is made in water, honeycomb ceramic piece is immersed in modified slurry, the cooling reduction of drying and roasting, obtain organic ligand modified formaldehyde cleaning catalyst.The present invention can not only filter dust, eliminate peculiar smell, sterilizing and absorption pernicious gas, moreover it is possible to completely catalytic decomposition formaldehyde pernicious gas, make absorption pernicious gas not will form secondary pollution, then be catalyst layer it is not easily to fall off and cracking, long service life.
Description
Technical field
The present invention relates to Techniques for Indoor Air Purification, more particularly, to a kind of modified purification air separation formaldehyde of organic ligand
Catalyst and its air purifier made of catalyst.
Background technique
With the continuous quickening of process of industrialization, room air pollution is on the rise, so that indoor air purification is also especially
Concern.Therefore people also have higher requirement the quality of home environment.At present for indoor air purification mostly using filter
The methods of net+active carbon filter screen ultraviolet radiation for sterilizing and disinfecting+electrostatic absorption filter screen is come to adsorb dust, elimination peculiar smell, sterilizing
Purify air.
As the improvement of people's living standards, finishing has become the fashion of generality, but a large amount of construction materials and dress at home
Pool material causes the pollution of room air again, and various chemical addition agent usage amounts are also being continuously increased in these materials, so that
New clothes repair escaping gas concentration in room air and are higher than outdoor, even higher than industrial area.Therefore room air, which removes, dust
Particle, microbial contamination beyond the region of objective existence, escaping gas such as formaldehyde, toluene, ammonia generated there are also chemical addition agent etc..Wherein volatility
The main formaldehyde of gas.And formaldehyde is a kind of colourless readily soluble irritative gas, when indoor content is 0.1 milligram/cubic metre
Just there are peculiar smell and sense of discomfort；0.5 milligram/cubic metre can stimulate eyes to cause to shed tears；Cause throat when 0.6 milligram/cubic metre
Uncomfortable or pain；Concentration is high again to cause Nausea and vomiting, cough, uncomfortable in chest, asthma even pulmonary emphysema；When 30 milligram/cubic metre
It can lead to death at once.Long Term Contact low dosage formaldehyde can also cause chronic respiratory disease and carcinogenic.
Many kinds of, the function of air purifier currently on the market are not quite similar, and application method is not also identical, and air is net
Change device to be generally located on flooring, also has for scavenging material to be packed into frame and hang on wall or the formula of being packed in bag is provided with dispersion
It is arranged indoors or in mobile air.But only working principle is divided, and there are mainly two types of：One is passive adsorption filtering types
Air purifier.The air cleaning of passive type is that air is pumped into machine with blower, passes through built-in strainer, active carbon filtration
Net, ultraviolet radiation for sterilizing and disinfecting+electrostatic absorption filter screen cross air filtering, can mainly play filtering dust, eliminate peculiar smell, sterilizing
The effects of with absorption pernicious gas, but it is unable to resolving harmful gas, is easy that the pernicious gas of absorption is made to disengage formation two again
Secondary pollution；Two kinds are active air purifiers, it is frequently with silver ion, anion, non-thermal plasma trap, although it puts
The limitation of blower and strainer has been taken off, has not been passively to wait room air to be drawn into clarifier to be filtered purification, Zhi Houzai
It is discharged by blower, but effective, active purifying and sterilizing factor that discharges into air is arrived by the diffused feature of air
Air purify without dead angle up to indoor each corner, but the maximum defect of such air purifier is exactly ozone burst size
It is exceeded.It is a kind of using Nano titanium dioxide as the photosemiconductor with photo-catalysis function of representative that photocatalyst technology, which purifies air,
The new technology of material, it is coated on substrate surface, under the action of light, generates catalytic degradation function, first in the air that can degrade
The toxic and harmful gas such as aldehyde, but purification efficiency is lower.
Summary of the invention
It is above-mentioned air purifier is deposited in the prior art aiming at the problem that, the present invention provides one kind both may filter that and adsorbed
Dust in air particle, eliminate peculiar smell, sterilizing and absorption pernicious gas, and can effective resolving harmful gas, improve purification
The preparation method of the organic ligand modified formaldehyde cleaning catalyst of efficiency.
The preparation method step of organic ligand modified formaldehyde cleaning catalyst of the present invention is：
1, honeycomb ceramic first is made through ball milling, pugging, molding, drying and shaping and high-temperature roasting with ceramic raw material and auxiliary material
Piece,
2, by raw titanium oxide material ball mill grinding at powders more than 200 mesh,
It 3, is at least one of La of titanium oxide powder weight 1-10% and tri- kinds of Cu, Fe, Ni and Sn, Mn two by total content
Kind at least one of carry out mixing premix, then plus the water of twice of titanium oxide powder weight be mixed and made into corresponding water soluble salt,
4, the titanium oxide powder of step b, then water bath method under agitation, are added in water soluble salt, through 100-
120oAfter C is dry, then modified catalyst supports are made in high-temperature roasting,
5, platinum nitrate solution is weighed, Pt content is modified catalyst supports weight 0.1-2% in platinum nitrate solution, by nitric acid
Platinum solution, which is added to, to be made of methanol, two kinds of at least one of ethyl alcohol and formaldehyde, at least one of two kinds of acetaldehyde with butyl glycol ether
Organic in the mixed solvent, add water to be made into 0.01mol/L Pt metal ion organic solution,
6, under agitation, modified catalyst supports are added in Pt metal ion organic solution, are adjusted with sodium carbonate
PH value is alkalinity, then water bath method, through 100-120oAfter C is dry, then modified catalyst supports powder is made in high-temperature roasting,
7, the boehmite of its weight 5-20% and the first of its weight 0.5-2% are added in modified catalyst supports powder
Base cellulose and suitable water, abundant ball grinding stirring are simultaneously adjusted to the modified slurry that solid content is 20-30%, pH value is acidity,
8, above-mentioned honeycomb ceramic piece is immersed in modified slurry, post-purge duct residual solution is taken out, through 100-120oC
It after drying, then in 200-600 DEG C of high-temperature roasting, is placed it in reduction furnace after cooling, being passed through volume ratio is 10% hydrogen and 90%
The mixed gas that nitrogen is formed, and 200 DEG C of heat preservation reduction are heated to, organic ligand modified formaldehyde purifying and catalyzing is obtained after cooling
Agent.
The present invention is when preparation purifies decomposing formaldehyde integral catalyzer, first is that using titanium oxide catalyst layer as carrier, then
In titanium oxide be added have peptizaiton La at least one of tri- kinds of Cu, Fe, Ni at least one of two kinds of Sn, Mn into
Row premix, enables mixture to form Monolayer Dispersion on titanium oxide, forms strong interaction, so that it is titanium stabilized to improve oxidation
Property；Second is that the dispersion degree of active component Pt is improved, to improve the activity of Catalytic Layer, selectivity by the way that La is added；Third is that system
During standby, introducing organic solvent is modified catalyst, using the complexing or peptizaiton of organic solvent and Pt, changes dipping
The surface tension of liquid reduces the granular size of catalyst Pt nanoparticle, improves the dispersion degree in activated centre, and then improve catalysis
The activity of agent obtains a kind of catalyst of room temperature efficient stable processing methane；Fifth is that in oxidation of formaldehyde decomposable process, simple substance Pt
It is activated centre, Cu, Fe, Ni can form alloy with active component Pt, slow down the oxidation process of active component, SnO2And Mn2O3Tool
There are active low-temperature oxidation species, the decomposition of formaldehyde can be promoted, improves the activity of catalyst layer；Fourth is that intending thin water aluminium by being added
Stone and methylcellulose, boehmite and nitric acid act on the Aluminum sol to be formed, and can be used as the adhesive of slurry, reinforce catalysis
Interaction between agent and ceramic monolith improves the upper carrying capacity of catalyst pulp, reduces the expulsion rate of coating, methylcellulose
As surfactant, the dispersibility of slurry can be turned up, improve the mobility of slurry, uploaded convenient for coating, while can also drop
The expulsion rate of low coating.
The present invention disperses and stablizes to make by the way that Pt active component is added in catalyst layer based on by titanium oxide with
Metal greatly enhances the adsorption of honeycomb ceramic piece, catalytic performance, in sufficiently filtering dust, elimination peculiar smell, kills
While the effects of bacterium disinfection and absorption pernicious gas, formaldehyde pernicious gas can be catalytically decomposed completely, make the pernicious gas of absorption
It not will form secondary pollution.Be again catalyst layer it is not easily to fall off and cracking, long service life.
The present invention can reduce the surface tension of dipping solution using methanol, ethyl alcohol, formaldehyde, acetaldehyde, butyl glycol ether, thus
Change capillary force, so that more tiny into the Pt particle in titanium dioxide carrier cellular structure, according to nanoparticle effect,
Pt particle is smaller, and exposed activated centre is more, so that catalyst activity is higher.Simultaneously methanol, ethyl alcohol, formaldehyde, acetaldehyde,
Butyl glycol ether itself has reproducibility so that a part of PtO particle in roasting process, be directly reduced to highly efficient
Pt simple substance, and the Pt that this partial reduction comes out can be in the more stable cellular structure there are titanium oxide.Sodium carbonate liquor
Adjusting pH is alkalinity to precipitate the Pt into carrier cellular structure, is prevented in the drying process, part Pt volatilizees with solvent
It overflows.
Organic ligand modified formaldehyde cleaning catalyst of the present invention includes honeycomb ceramic piece and immersion coating in bee
Lead on socket bore surface and by the Catalytic Layer that titanium oxide, active metal and dispersion, the metal of stabilization or golden oxide form
High-temperature roasting is crossed to be made.It can be used to that box air purifier is made, and can also be filled in framework that suspension type is made is net
Change device, can also be made on various packed air purifiers placement desks, some position on tea table, on sofa and in automobile
It sets.
The air purifier made of catalyst of the present invention carries out indoor air purification, through specialized department's repeated detection
Formaldehyde content in indoor air is in 0.08mg/m3Below.
Specific embodiment
Embodiment 1
The preparation method step of organic ligand modified formaldehyde cleaning catalyst of the present invention is：
1, the aluminium oxide of 40-50wt% is first used（Powder）, 30-40wt% silica（Powder）And bonding agent, the profit of 10-30wt%
The auxiliary material of lubrication prescription and flux composition adds suitable quantity of water that honeycomb hole pottery is made through ball milling, pugging, molding, drying and shaping and high-temperature roasting
Tile, honeycomb ceramic piece is cylindrical, and it is highly 12.5 millimeters that diameter, which is 25 millimeters, and honeycomb hole mesh number is 300 mesh；
2, with raw titanium oxide material ball mill grinding at the titanium oxide powder of 250 mesh；
3, the powder of La, Cu and Mn that total content is titanium oxide powder weight 5% are first premixed, then plus twice of titanium oxide powder
The water of material weight is mixed and made into corresponding water soluble salt, La（Lanthanum）, Cu and Mn weight ratio be 4: 3: 3,
4, the titanium oxide powder of step b under agitation, is added in water soluble salt, then with 80oC water bath method, warp
120oAfter C is 12 hours dry, then 600oModified catalyst supports are made within C high-temperature roasting 4 hours,
5, platinum nitrate solution is weighed, wherein Pt content is modified catalyst supports weight 0.4% in platinum nitrate solution, by nitre
Sour platinum solution is added in the organic miscible mixture being made of methanol, acetaldehyde and butyl glycol ether that weight ratio is 4: 4: 2, adds water
It is made into 0.01mol/L Pt metal ion organic solution,
6, under agitation, modified catalyst supports are added in Pt metal ion organic solution, with 0.1mol/L's
It is 8 that sodium carbonate liquor, which adjusts pH value, then with 80oC water bath method, through 120oAfter C is 12 hours dry, then in 200-600oThe roasting of C high temperature
It burns 4 hours and modified catalyst supports powder is made,
7, the boehmite of its weight 10% and the Methyl cellulose of its weight 1% are added in modified catalyst supports powder
Plain and suitable water, abundant ball grinding stirring are simultaneously adjusted to the acid modification slurry that solid content is 20-30%, pH value is 4,
8, above-mentioned honeycomb ceramic piece is immersed in modified slurry, is taken out after impregnating 5min, purge duct residual solution, warp
100-120oAfter C is dry, then 200-600 DEG C high-temperature roasting 4 hours, placed it in reduction furnace after cooling, be passed through volume ratio
For the mixed gas that 10% hydrogen and 90% nitrogen are formed, and 200 DEG C of heat preservations reduction are heated to, organic ligand modification is obtained after cooling
Purifying formaldehyde catalyst.
The Pt metal can also use Pd（Palladium）,Rh（Rhodium）Or gold（Au）It is alternative.Suitable water meter, which shows, to be adjusted to
Water used when the acid modification slurry that solid content is 20-30%, pH value is 4.5.
Embodiment 2,
The preparation method step of the organic ligand modified formaldehyde cleaning catalyst is：
1, the aluminium oxide of 40-50wt% is first used（Powder）, 30-40wt% silica（Powder）And bonding agent, the profit of 10-30wt%
The auxiliary material of lubrication prescription and flux composition adds suitable quantity of water that honeycomb hole pottery is made through ball milling, pugging, molding, drying and shaping and high-temperature roasting
Tile, honeycomb ceramic piece is cylindrical, and it is highly 12.5 millimeters that diameter, which is 25 millimeters, and honeycomb hole mesh number is 300 mesh；
2, with raw titanium oxide material ball mill grinding at the titanium oxide powder of 250 mesh；
3, the powder of La, Fe and Sn that total content is titanium oxide powder weight 3-5% are first premixed, then plus twice of titanium oxide
The water of powder weight is mixed and made into corresponding water soluble salt, La（Lanthanum）, Fe and Sn weight ratio be 4: 3: 3,
4, the titanium oxide powder of step b under agitation, is added in water soluble salt, then with 80oC water bath method, warp
120oAfter C is 12 hours dry, then 600oModified catalyst supports are made within C high-temperature roasting 4 hours,
5, platinum nitrate solution is weighed, wherein Pt content is modified catalyst supports weight 0.4% in platinum nitrate solution, by nitre
Sour platinum solution is added in the organic miscible mixture being made of ethyl alcohol, second, formaldehyde and butyl glycol ether that weight ratio is 5: 3: 3,
Water is added to be made into 0.01mol/L Pt metal ion organic solution,
6, under agitation, modified catalyst supports are added in Pt metal organic solution, with the carbonic acid of 0.1mol/L
It is 8 alkalinity that sodium solution, which adjusts pH value, then with 80oC water bath method, through 120oAfter C is 12 hours dry, then in 200-600oThe roasting of C high temperature
It burns 4 hours and modified catalyst supports powder is made,
7, the boehmite of its weight 10% and the Methyl cellulose of its weight 1% are added in modified catalyst supports powder
Plain and suitable water, abundant ball grinding stirring are simultaneously adjusted to the acid modification slurry that solid content is 20-30%, pH value is 4,
8, above-mentioned honeycomb ceramic piece is immersed in modified slurry, is taken out after impregnating 5min, purge duct residual solution, warp
100-120oAfter C is dry, then 200-600 DEG C high-temperature roasting 4 hours, placed it in reduction furnace after cooling, be passed through volume ratio
For the mixed gas that 10% hydrogen and 90% nitrogen are formed, and 200 DEG C of heat preservations reduction are heated to, organic ligand modification is obtained after cooling
Purifying formaldehyde catalyst.
The Pt metal can also use Pd（Palladium）,Rh（Rhodium）Or gold（Au）It is alternative.Suitable water meter, which shows, to be adjusted to
Water used when the acid modification slurry that solid content is 20-30%, pH value is 4.5.
Claims (2)
1. a kind of preparation method of organic ligand modified formaldehyde cleaning catalyst, it is characterized in that：The method step is：
A, honeycomb ceramic piece first is made through ball milling, pugging, molding, drying and shaping and high-temperature roasting with ceramic raw material and auxiliary material,
B, by titanium oxide ball mill grinding at powders more than 200 mesh；
C, by total content be titanium oxide powder weight 1-10% La at least one of tri- kinds of Cu, Fe, Ni with two kinds of Sn, Mn in
At least one carries out mixing premix, then plus the water of twice of titanium oxide powder weight be mixed and made into corresponding water soluble salt,
D, the titanium oxide powder of step b, then water bath method under agitation, are added in water soluble salt, through 100-120oC is dry
After dry, then modified catalyst supports are made in high-temperature roasting,
E, platinum nitrate solution is weighed, Pt content is modified catalyst supports weight 0.1-2% in platinum nitrate solution, and platinum nitrate is molten
Liquid be added to by methanol, two kinds of ethyl alcohol it is at least one with formaldehyde, at least one of two kinds of acetaldehyde have with what butyl glycol ether formed
Machine in the mixed solvent adds water to be made into 0.01mol/L Pt metal ion organic solution,
F, under agitation, modified catalyst supports are added in Pt metal ion organic solution, adjust pH value with sodium carbonate
For alkalinity, then water bath method, through 100-120oAfter C is dry, then modified catalyst supports powder is made in high-temperature roasting,
G, the methyl of boehmite and its weight 0.5-2% that its weight 5-20% is added in modified catalyst supports powder is fine
Dimension element and suitable water, abundant ball grinding stirring are simultaneously adjusted to the modified slurry that solid content is 20-30%, pH value is acidity,
H, above-mentioned honeycomb ceramic piece is immersed in modified slurry, post-purge duct residual solution is taken out, through 100-120oC is dry
Afterwards, it then in 200-600 DEG C of high-temperature roasting, is placed it in reduction furnace after cooling, being passed through volume ratio is 10% hydrogen and 90% nitrogen
The mixed gas of formation, and 200 DEG C of heat preservation reduction are heated to, organic ligand modified formaldehyde cleaning catalyst is obtained after cooling.
2. air purifier made of a kind of catalyst made of claim 1 the method, it is characterized in that：The air is net
Change device is box type air purifyer, suspension type clarifier or air cleaning bag.
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| CN102247837A (en) * | 2010-05-18 | 2011-11-23 | 上海牛翼新能源科技有限公司 | Titanium oxide supported catalyst for eliminating formaldehyde in microenvironment air |
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| CN104174395A (en) * | 2014-08-04 | 2014-12-03 | 南昌大学 | Preparation method of rare-earth modification load type precious metal monolithic catalyst for removing formaldehyde at room temperature |
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